GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1581864  Size: SH
  1. Install the NEW oil filter bypass valve. Seat the valve fully below the bypass valve hole chamfer.

  2. Object Number: 1645438  Size: SH

    Notice: Maximum gasket performance is achieved when using new fasteners, which contain a thread-locking patch. If the fasteners are not replaced, a thread locking chemical must be applied to the fastener threads. Failure to replace the fasteners or apply a thread-locking chemical MAY reduce gasket sealing capability.

  3. Install the oil filter adapter (1) and gasket.
  4. Apply threadlocker P/N 21485277 to the bolt threads if required.
  5. Notice: Refer to Fastener Notice in the Preface section.

  6. Install the oil filter adapter bolts.
  7. Tighten
    Tighten the oil filter adapter bolts to 25 N·m (18 lb ft).

  8. Install the oil filter adapter heat shield (2).
  9. Install the oil filter adapter heat shield nuts.
  10. Tighten
    Tighten the oil filter adapter heat shield nuts to 25 N·m (18 lb ft).


    Object Number: 1556786  Size: SH
  11. Install the oil filter.
  12. Tighten
    Tighten the oil filter to 30 N·m (22 lb ft).